A)24 boards/1 * 47.5 inch/boards * 1 ft/12in = 95 ft.
according to dimensional analysis the answer is 95 ft.
b) 95/8 is approximately 12 so 12 boards are needed.
Again here we're using like terms
a) -2x² + 12x² = 10x² (they have the same term that's why I grouped them together)
-4x + 2x = -2x
13 - 25 = -12
So the final answer is 10x² - 2x -12
b) 7x² - (-7x²) = 7x² + 7x² or 14x²
4x - (-3x) = 4x + 3x or 7x
-26 - 15 = -41
The final answer to this one is 14x² + 7x - 41
To complete the table, just use the given equation to solve for the corresponding values of y. and i think the formula is wrong, it should be
y = <span>25,000 • 0.95^x</span>
at x = 1
<span>a0 = y = 25,000 • 0.95^x
</span>a0 = <span>25,000 • 0.95^(1)
a0 = 23750.00
at x = 2
a1 = </span>y = <span>25,000 • 0.95^x
a1 </span>= <span>25,000 • 0.95^( 2 )
a1 = 22562.50
at x = 3
a2 = </span>y = <span>25,000 • 0.95^x
a2 = </span> <span>25,000 • 0.95^( 3 )
a2 = 21434.38
</span>
Answer: x=5
Step-by-step explanation: